by SpitFlame
http://www.fimfiction.net/story/155526/127-pets

After Rainbow Dash declares Tank as her new pet, she decides to take a quick fly through Ghastly Gorge. She told none of her friends were she was going. If something happens, help won't come. In such a grim situation, to escape is to make every second count.
Based on the movie 127 Hours.

My channel:
http://www.youtube.com/user/TheEnderBrony